Added java-mongodb module (#978)

* Made maven project.

* Added mongo driver dependencies.

* Added crud operations.

* Class rename

* Added tests

java-mongodb/.gitignore

@@ -0,0 +1,5 @@
+.classpath
+.project
+.settings
+target
+build

java-mongodb/pom.xml

@@ -0,0 +1,44 @@
+<?xml version="1.0"?>
+<project
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+	xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+	<modelVersion>4.0.0</modelVersion>
+
+	<groupId>com.baeldung</groupId>
+	<artifactId>java-mongodb</artifactId>
+	<version>1.0-SNAPSHOT</version>
+
+	<properties>
+		<maven.compiler.source>1.8</maven.compiler.source>
+		<maven.compiler.target>1.8</maven.compiler.target>
+		<junit.version>4.12</junit.version>
+		<mongo.version>3.4.1</mongo.version>
+		<flapdoodle.version>1.11</flapdoodle.version>
+	</properties>
+
+	<dependencies>
+
+		<dependency>
+			<groupId>junit</groupId>
+			<artifactId>junit</artifactId>
+			<version>${junit.version}</version>
+			<scope>test</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>de.flapdoodle.embedmongo</groupId>
+			<artifactId>de.flapdoodle.embedmongo</artifactId>
+			<version>${flapdoodle.version}</version>
+			<scope>test</scope>
+		</dependency>
+
+
+		<dependency>
+			<groupId>org.mongodb</groupId>
+			<artifactId>mongo-java-driver</artifactId>
+			<version>${mongo.version}</version>
+		</dependency>
+
+	</dependencies>
+
+</project>

java-mongodb/src/main/java/com/baeldung/MongoExample.java

@@ -0,0 +1,53 @@
+package com.baeldung;
+
+import com.mongodb.BasicDBObject;
+import com.mongodb.DB;
+import com.mongodb.DBCollection;
+import com.mongodb.DBCursor;
+import com.mongodb.MongoClient;
+
+public class MongoExample {
+    public static void main( String[] args ) {
+        
+    	MongoClient mongoClient = new MongoClient("localhost", 27017);
+    	
+    	DB database = mongoClient.getDB("myMongoDb");
+    	
+    	// print existing databases
+    	mongoClient.getDatabaseNames().forEach(System.out::println);
+    	
+    	database.createCollection("customers", null);
+    	
+    	// print all collections in customers database
+    	database.getCollectionNames().forEach(System.out::println);
+    	
+    	// create data
+    	DBCollection collection = database.getCollection("customers");
+    	BasicDBObject document = new BasicDBObject();
+    	document.put("name", "Shubham");
+    	document.put("company", "Baeldung");
+    	collection.insert(document);
+    	
+    	// update data
+    	BasicDBObject query = new BasicDBObject();
+    	query.put("name", "Shubham");
+    	BasicDBObject newDocument = new BasicDBObject();
+    	newDocument.put("name", "John");
+    	BasicDBObject updateObject = new BasicDBObject();
+    	updateObject.put("$set", newDocument);
+    	collection.update(query, updateObject);
+    	
+    	// read data
+    	BasicDBObject searchQuery = new BasicDBObject();
+    	searchQuery.put("name", "John");
+    	DBCursor cursor = collection.find(searchQuery);
+    	while (cursor.hasNext()) {
+    	  System.out.println(cursor.next());
+    	}
+    	
+    	// delete data
+    	BasicDBObject deleteQuery = new BasicDBObject();
+    	deleteQuery.put("name", "John");
+    	collection.remove(deleteQuery);
+    }
+}

java-mongodb/src/test/java/com/baeldung/AppTest.java

@@ -0,0 +1,72 @@
+package com.baeldung;
+
+import static org.junit.Assert.assertEquals;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import com.mongodb.BasicDBObject;
+import com.mongodb.DB;
+import com.mongodb.DBCollection;
+import com.mongodb.DBCursor;
+import com.mongodb.Mongo;
+import de.flapdoodle.embedmongo.MongoDBRuntime;
+import de.flapdoodle.embedmongo.MongodExecutable;
+import de.flapdoodle.embedmongo.MongodProcess;
+import de.flapdoodle.embedmongo.config.MongodConfig;
+import de.flapdoodle.embedmongo.distribution.Version;
+import de.flapdoodle.embedmongo.runtime.Network;
+
+public class AppTest {
+
+	private static final String DB_NAME = "myMongoDb";
+	private MongodExecutable mongodExe;
+	private MongodProcess mongod;
+	private Mongo mongo;
+	private DB db;
+	private DBCollection collection;
+
+	@Before
+	public void setup() throws Exception {
+		
+		// Creating Mongodbruntime instance
+		MongoDBRuntime runtime = MongoDBRuntime.getDefaultInstance();
+		
+		// Creating MongodbExecutable
+		mongodExe = runtime.prepare(new MongodConfig(Version.V2_0_1, 12345,
+				Network.localhostIsIPv6()));
+		
+		// Starting Mongodb
+		mongod = mongodExe.start();
+		mongo = new Mongo("localhost", 12345);
+		
+		// Creating DB
+		db = mongo.getDB(DB_NAME);
+		
+		// Creating collection Object and adding values
+		collection = db.getCollection("customers");
+	}
+
+	@After
+	public void teardown() throws Exception {
+		mongod.stop();
+		mongodExe.cleanup();
+	}
+
+	@Test
+	public void testAddressPersistance() {
+		
+		BasicDBObject contact = new BasicDBObject();
+		contact.put("name", "John");
+		contact.put("company", "Baeldung");
+		
+		// Inserting document
+		collection.insert(contact);
+		DBCursor cursorDoc = collection.find();
+		BasicDBObject contact1 = new BasicDBObject();
+		while (cursorDoc.hasNext()) {
+			contact1 = (BasicDBObject) cursorDoc.next();
+			System.out.println(contact1);
+		}
+		assertEquals(contact1.get("name"), "John");
+	}
+}

pom.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung</groupId>
     <artifactId>parent-modules</artifactId>
@@ -175,6 +174,7 @@
         <module>xml</module>
         <module>xmlunit2</module>
         <module>xstream</module>
-    </modules>
+    <module>java-mongodb</module>
+  </modules>
 
-</project>
+</project>